This was discussed at great lengths back on the SI board. Remember, there is no perpetual motion machine out there that I am aware of. However, it is possible to AIM these funds successfully, just not by the book. By the way, the expenses and compounding are secondary effects relative to market action. Which all points to the inherent weakness of AIM. It has no brakes. But it is like coffee; once your're hooked, it's hard to give up!